Navigational Lights, ContinuedName2. Blinker3. AircraftWarningDescriptionEnergized WhenThe blinker lights are located on theUsed as an alternative methodyardarms and are used for sendingof sending flashing light atflashing light. The blinker lights arenight.used with signal keys, which arenormally installed on the bridge andsignal bridge. The blinker light switchmust be in the ON position for thesignal key to be activated.The aircraft warning lights are 360° redFrom sunset to sunrise whenlights. They are installed at the truck ofyour ship is at anchor oreach mast that extends more than 8moored.meters (26 feet) above the highest pointof the superstructure. Two aircraftWhen operating aircraft atwarning lights are installed if the onenight.light cannot be seen throughout 360°. Iftwo masts are tall enough to requirethese lights but are less than 15 metersapart, they will be installed only on thehigher mast.4. Not UnderThe crank/switch controls a pair of redNot Under Command--WhenCommand/lights that have multiple uses. Thethe switch is in the ONManlights are located 6 feet apartposition, it turns on the redOverboard(vertically) and mounted on bracketslights, which indicate that yourthat extend abaft the mast or structureship has had a breakdown.and to port thereof. This mountingarrangement permits visibility, as far asMan Overboard--When thepracticable, throughout the 360° arc.switch is continually turned ONand OFF by use of the crank, itcauses the pair of red lights toblink ON and OFF (pulsate),indicating that your ship has aman overboard.11-17